init

internal/utils/validator/setup.go

@@ -0,0 +1,12 @@
+package validator
+
+import (
+	"github.com/kratisto/mam-contract/internal/utils"
+)
+
+const ValidatorInjectorKey = "VALIDATOR"
+
+func Setup(injector *utils.Injector) {
+
+	injector.Set(ValidatorInjectorKey, newValidator())
+}

internal/utils/validator/validator.go

@@ -0,0 +1,28 @@
+package validator
+
+import (
+	"github.com/kratisto/mam-contract/internal/storage/validators"
+	"gopkg.in/go-playground/validator.v9"
+	"reflect"
+	"strings"
+)
+
+func newValidator() *validator.Validate {
+	va := validator.New()
+
+	va.RegisterTagNameFunc(func(fld reflect.StructField) string {
+		name := strings.SplitN(fld.Tag.Get("json"), ",", 2)
+		if len(name) < 1 {
+			return ""
+		}
+		return name[0]
+	})
+
+	for k, v := range validators.CustomValidators {
+		if v.Validator != nil {
+			va.RegisterValidationCtx(k, v.Validator)
+		}
+	}
+
+	return va
+}